Recent questions tagged R

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r - Returning anonymous functions from lapply - what is going wrong?

When trying to create a list of similar functions using lapply, I find that all the functions in the list ... correct functions in the list)? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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340 views

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r - apply a function over groups of columns

How can I use apply or a related function to create a new data frame that contains the results of the row ... data has some hundreds of columns. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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303 views

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r - Interpolate NA values

I have two set of samples that are time independent. I would like to merge them and calculate the missing ... to calculate the NA values? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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424 views

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r - filter function in dplyr errors

I have a data frame in R like so called UK_profiles: row.names id name 1 1 8131437 Profile 2 2 8131719 ... dataframe. Can someone please help? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - data.table equivalent of tidyr::complete()

tidyr::complete() adds rows to a data.frame for combinations of column values that are missing from the data. ... of this in data.table? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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372 views

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r - Calculate multiple aggregations on several variables using lapply(.SD, ...)

I'd like to perform multiple aggregations, using data.table's lapply(.SD, ...) approach, i.e. calculate ... not possible without .SDcols AFAIK. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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386 views

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r - Put a break in the Y-Axis of a histogram

I'm not sure exactly what to call this, but I'm trying to achieve a sort of "broken histogram" or "axis gap" ... -axis and $counts as my y-axis. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Conditional coloring of cells in table

I am trying to create a data table whose cells are different colors based on the value in the cell. I ... help would be greatly appreciated. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - How to plot a hybrid boxplot: half boxplot with jitter points on the other half?

I'm trying to make a similar plot to Fig. 2d-f in an article published on Nature this year. It's basically a ... (col = guide_legend(nrow = 1)) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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389 views

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r - Speed up plot() function for large dataset

I am using plot() for over 1 mln data points and it turns out to be very slow. Is there any way to ... )? Where are data for plot stored? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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386 views

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r - Emulate split() with dplyr group_by: return a list of data frames

I have a large dataset that chokes split() in R. I am able to use dplyr group_by (which is a preferred way ... names from the list of dfs). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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485 views

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r - double dots in a ggplot

I can not find the documentation for the double dots around density set.seed(1234) df <- data.frame(cond = factor ... to find how it is defined. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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458 views

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r - There is pmin and pmax each taking na.rm, why no psum?

It seems that R might be missing an obvious simple function: psum. Does it exist as a different name, or is ... two columns in R, ignoring NAs See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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287 views

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r - How to concatenate factors, without them being converted to integer level?

I was surprised to see that R will coerce factors into a number when concatenating vectors. This happens even when ... pretty large)? Thank you. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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381 views

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r - Converting two columns of a data frame to a named vector

I need to convert a multi-row two-column data.frame to a named character vector. My data.frame would be something like: ... ", "d" = "Doris") See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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334 views

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r - Assigning Dates to Fiscal Year

I'm trying to come up with some code that will look at a date and then assign it to a fiscal year. I'm ... Is there any easy way to do this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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713 views

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r - How can I order the months chronologically in ggplot2 short of writing the months out?

I am trying to plot count v/s month ggplot(dat, aes(x=month, y=count,group=region)) + geom_line(data=mcount[ ... "data.table", "data.frame")) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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447 views

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r - Subfigures or Subcaptions with knitr?

Is it possible to produce subfigures (with associated subcaptions) using knitr? Here is a minimal working example ... figure-size-and-placement/ See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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606 views

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r - Save plot with a given aspect ratio

I'm working with the really awesome library ggplot2. I figured out how to set the aspect ratio of a plot by ... this. Is this even possible? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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890 views

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r - displaying a pdf from a local drive in shiny

I'm still new to r and shiny, and i'm stumped with what should otherwise be simple logic. I am trying to ... are already on a local drive.. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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278 views

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r - Subset based on variable column name

I'm wondering how to use the subset function if I don't know the name of the column I want to test. ... a variable that holds the column name. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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372 views

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r - ggmap Error: GeomRasterAnn was built with an incompatible version of ggproto

I'm using ggmap, and got the error below: Error: GeomRasterAnn was built with an incompatible version of ggproto. ... still got the same error. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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467 views

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r - Combining Bar and Line chart (double axis) in ggplot2

I have double-y-axis chart made in Excel. In Excel it requires only basic skills. What I'd like to do is to ... =0.9*Response), colour="black") See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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852 views

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r - How to add a number of observations per group and use group mean in ggplot2 boxplot?

I am doing a basic boxplot where y=age and x=Patient groups age <- ggplot(data, aes(factor(group2), age ... would be much appreciated! Thanks!! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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592 views

1 answer

r - sample rows of subgroups from dataframe with dplyr

If I want to randomly select some samples from different groups I use the plyr package and the code below ... a table sample_n and sample_frac See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

417 views

1 answer

r - Remove pattern from string with gsub

I am struggling to remove the substring before the underscore in my string. I want to use * (wildcard) as the ... ?" but did not really work. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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364 views

1 answer

r - Count number of rows matching a criteria

I am looking for a command in R which is equivalent of this SQL statement. I want this to be a very ... Any help would be appreciated! Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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301 views

1 answer

r - How subset a data frame by a factor and repeat a plot for each subset?

I am new to R. Forgive me if this if this question has an obvious answer but I've not been able ... that individual plots are created? Thanks! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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